X="3.8" y="3.1"/> - 2 x switching (normalling) stereo jack and switching ground contact, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fahl-0 A Series, Chassis connector Phoenix H male (A series layout), mates with Phoenix MSTB2,5/3-ST, horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch 2.00u vertical plate Cherry MX keyswitch, 2.25u.